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Jet001 [13]
3 years ago
6

Yusef is doing an experiment to find out how the amount of sunlight affects the growth of a seedling what is the variable in yis

ef experiment​
Physics
1 answer:
Mekhanik [1.2K]3 years ago
7 0

Answer:

Independent Variable: Amount of Sunlight

Dependent Variable: Growth of Seedling

Constant: Things that don't change like kind of soil, type of pot, amount of water, etc.

Explanation:

I'm not sure which variable (independent, dependent, etc) so I'm going to do them all

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Suppose a vertebra is subjected to a shearing force of 420 N. Find the shear deformation in m, taking the vertebra to be a cylin
vazorg [7]

Answer:

1.34103\times 10^{-7}\ m

Explanation:

F = Shearing force = 420 N

L_0 = Initial length = 2.6 cm

d = Diameter = 3.6 cm

r = Radius  = \frac{d}{2}=\frac{3.6}{2}=1.8\ cm

E = Young's modulus = 80\times 10^9\ N/m^2

A = Area = \pi r^2

Change in length is given by

\Delta L=\frac{FL_0}{AE}\\\Rightarrow \\\Rightarrow \Delta L=\frac{420\times 0.026}{\pi 0.018^2\times 80\times 10^9}\\\Rightarrow \Delta L=1.34103\times 10^{-7}\ m

The shear deformation of the vertebra is 1.34103\times 10^{-7}\ m

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3 years ago
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4 years ago
Mr. Smith is designing a race where velocity will be measured. Which course would allow velocity to accurately get a winner?
REY [17]
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3 years ago
What is electronegativity? (2 points)
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Answer:

the first one

Explanation:

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